CN105182034A - Oscilloscope and connecting device thereof - Google Patents
Oscilloscope and connecting device thereof Download PDFInfo
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- CN105182034A CN105182034A CN201510648887.XA CN201510648887A CN105182034A CN 105182034 A CN105182034 A CN 105182034A CN 201510648887 A CN201510648887 A CN 201510648887A CN 105182034 A CN105182034 A CN 105182034A
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- interface
- interface control
- triode
- output terminal
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Abstract
The invention provides an oscilloscope and a connecting device thereof. The connecting device comprises a plurality of first interfaces matching probes of at least one model; a first interface control unit respectively in connection with output terminals of the first interfaces, and used for controlling corresponding interfaces to transmit level signals when a connected probe detects the level signals; an attenuation unit connected to the output terminal of the first interface control unit, and used for attenuating the received level signals; a second interface control unit in connection with the output terminal of the attenuation unit, and used for transmitting the level signals after receiving the attenuated level signals; and second interfaces having input terminals connected to the second interface control unit, and matching the interface channel of an oscilloscope. The connecting device can match probes of different models, and also can utilize the attenuation unit to enlarge the level signal voltage scope which can be borne the oscilloscope.
Description
Technical field
The present invention relates to a kind of coupling arrangement, particularly relate to a kind of oscillograph and coupling arrangement thereof.
Background technology
Oscillograph types of brand are more, and corresponding the sonde configuration be suitable for is also different.Probe is the equipment forming physical connection and electrical connection between oscillograph and test point.
Because oscillographic interface channel model is fixed, therefore, need when using different probe to coordinate different adapters, to be connected with probe by oscillograph.But in use, due to difference and the signal magnitude difference of measuring-signal kind, when switching uses different probes, need to plug different adapters.This operation is not only loaded down with trivial details, and causes interface channel to be easy to damage to the repeatedly plug of oscillograph interface channel.Therefore, need to improve existing adapter.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of oscillograph and coupling arrangement thereof, can not support for solving adapter in prior art the problem that polytypic is popped one's head in.
For achieving the above object and other relevant objects, the invention provides a kind of oscillographic coupling arrangement, comprising: the multiple first interfaces matched with the probe of at least one model; The first interface control module be connected with the output terminal of each described first interface respectively, transmits described level signal for working as connected probe detection to controlling corresponding first interface during level signal; The attenuation units be connected with the output terminal of described first interface control module, for decaying received level signal; The second interface control unit be connected with the output terminal of described attenuation units, for transmitting described level signal when receiving the level signal after decay; Input end connects the second interface of described second interface control unit, and described second interface and oscillographic interface channel match.
Preferably, described first interface control module comprises: multiple first controlled module, each described first controlled module is corresponding with described first interface to be connected, and comprising: be connected to the relay between electric power loop, the triode of connecting with described relay and be connected in parallel on the controlled switch at described relay two ends; Wherein, the base stage of described triode connects the output terminal of described first interface, collector connects described relay, grounded emitter.
Preferably, described attenuation units comprises: at least one bleeder circuit, each bleeder circuit comprises: the trigger be connected with the output terminal of described first interface control module, the divider resistance be connected with the output terminal of described trigger, wherein, described trigger exports the level signal from first interface when exceeding corresponding predetermined voltage range.
Preferably, described trigger comprises: the first comparer, the second comparer, triode T1 and T2, wherein, the upper limit of the negative input end access predetermined voltage range of described first comparer, positive input terminal is connected with the negative input end of described second comparer with the output terminal of described first interface control module, the lower limit of the positive input terminal access predetermined voltage range of described second comparer, described first comparer is all connected the base stage of described triode T1 with the output terminal of the second comparer, the base stage of the collector connecting triode T2 of described triode T1, the grounded emitter of described triode T1, the emitter of described triode T2 connects the output terminal of described first interface control module, collector connects divider resistance Rset1.
Preferably, the quantity of described bleeder circuit is multiple and is connected in parallel, and the predetermined voltage range in each described bleeder circuit is relevant to the class of attenuation preset with the resistance of divider resistance.
Preferably, also comprise: be connected to the input resistance option cell between described attenuation units and the second interface control unit, comprise: multiple input resistance, each input resistance connects an actuating switch, and described input resistance option cell is used for based on the connected corresponding actuating switch of oscillographic input resistance conducting.
Preferably, described second interface control unit comprises: multiple second controlled module, each described second controlled module is corresponding with described second interface to be connected, comprise: be connected to the relay between electric power loop and triode, be connected in parallel on described relay two ends and the controlled switch of level signal after receiving attenuation; Wherein, the base stage of described triode connects the input end of described second interface, collector connects described relay, grounded emitter.
Based on above-mentioned purpose, the present invention also provides a kind of oscillograph, comprises as above arbitrary described coupling arrangement.
As mentioned above, oscillograph of the present invention and coupling arrangement thereof, have following beneficial effect: the probe that can not only mate polytypic, also utilizes attenuation units to expand the voltage range of the level signal that oscillograph can bear; In addition, comprising in described first control module and first interface the first controlled module one to one, being convenient to the automatic conducting when there being level signal to access; Further, bleeder circuit is utilized to carry out dividing potential drop decay to described level signal; Further, the predetermined voltage range in each bleeder circuit and the resistance of divider resistance set according to the class of attenuation preset, and can help the level signal of the larger voltage range of oscillograph process; In addition, optional input resistance is set, is convenient to the needs being suitable for dissimilar oscillographic input resistance.
Accompanying drawing explanation
Fig. 1 is shown as the structural drawing of oscillographic coupling arrangement of the present invention.
Fig. 2 is shown as the structural representation of the first controlled module in oscillographic coupling arrangement of the present invention.
Fig. 3 is shown as the structural representation of bleeder circuit in oscillographic coupling arrangement of the present invention.
Fig. 4 is shown as the structural representation of a kind of preferred version of oscillographic coupling arrangement of the present invention.
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this instructions can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this instructions also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
As shown in Figure 1, the invention provides a kind of oscillographic coupling arrangement.Described coupling arrangement can be an oscillographic part, also can independent of oscillograph.It comprises: first interface 11, first interface control module 12, attenuation units 13, second interface control unit 14, second interface 15.
The quantity of described first interface 11 is multiple, and each described first interface 11 can mate the probe 2 of at least one model.Described first interface 11 is the channel interface docked with probe 2 shape and stitch.Each described first interface 11 can horizontally-arranged mode arrange.
The output terminal of each described first interface 11 is connected respectively to each port of described first interface control module 12, and described first interface control module 12 controls corresponding first interface 11 when connected probe 2 detects level signal transmit described level signal for working as.
Particularly, described first interface control module 12 comprises the controlled switch connecting each port, and when a certain port accepts is to level signal, corresponding controlled switch closes, and corresponding level signal is transmitted by described first control module.
In the present embodiment, described first interface control module 12 comprises: multiple first controlled module, each described first controlled module is corresponding with described first interface 11 to be connected, and comprising: be connected to the relay between electric power loop, the triode of connecting with described relay and be connected in parallel on the controlled switch at described relay two ends; Wherein, the base stage of described triode connects the output terminal of described first interface 11, collector connects described relay, grounded emitter.
When the probe 2 of a certain first interface 11 visit get level signal time, the triode in corresponding first controlled module is switched on because of received level signal, and the triode of conducting causes the controlled switch adhesive of relay.As shown in Figure 2, described first controlled module also comprises the pilot lamp of connecting with described controlled switch, and when described controlled switch closes, described pilot lamp is bright, to illustrate that probe 2 outputs level signal.
Because the voltage of 2 level signals exported of popping one's head in is higher, a lot of devices in oscillograph cannot bear the voltage of described level signal, therefore, need to carry out attenuation processing to the voltage of described level signal.
Described attenuation units 13 is connected with the output terminal of described first interface control module 12, for received level signal being decayed.
At this, described attenuation units 13 carries out dividing potential drop by fixing divider resistance to received level signal.Preferably, described attenuation units 13 comprises: at least one bleeder circuit.Each bleeder circuit comprises: the trigger be connected with the output terminal of described first interface control module 12, the divider resistance be connected with the output terminal of described trigger, wherein, described trigger exports the level signal from first interface 11 when exceeding corresponding predetermined voltage range.In the present embodiment, as shown in Figure 3, described trigger comprises: the first comparer, second comparer, triode T1 and T2, wherein, the upper limit of the negative input end access predetermined voltage range of described first comparer, positive input terminal is connected with the negative input end of described second comparer with the output terminal of described first interface control module 12, the lower limit of the positive input terminal access predetermined voltage range of described second comparer, described first comparer is all connected the base stage of described triode T1 with the output terminal of the second comparer, the base stage of the collector connecting triode T2 of described triode T1, the grounded emitter of described triode T1, the emitter of described triode T2 connects the output terminal of described first interface control module 12, collector connects divider resistance Rset1.
As shown in Figure 4, the quantity of described bleeder circuit is multiple and is connected in parallel, and the predetermined voltage range in each described bleeder circuit is relevant to the class of attenuation preset with the resistance of divider resistance.Such as according to preset the class of attenuation, the predetermined voltage range in each bleeder circuit and the resistance of divider resistance as shown in table 1.At this, U1 is the upper limit of predetermined voltage range, and U2 is the lower limit of predetermined voltage range.
Table 1
Described second interface control unit 14 is connected with the output terminal of described attenuation units 13, for transmitting described level signal when receiving the level signal after decay.Structure and the first interface control module 12 of described second interface control unit 14 are same or similar.Such as, described second interface control unit 14 comprises: multiple second controlled module, each described second controlled module is corresponding with described second interface 15 to be connected, comprise: be connected to the relay between electric power loop and triode, be connected in parallel on described relay two ends and the controlled switch of level signal after receiving attenuation; Wherein, the base stage of described triode connects the input end of described second interface 15, collector connects described relay, grounded emitter.
The input end of described second interface 15 connects described second interface control unit 14, and described second interface 15 matches with oscillographic interface channel 3.At this, described second interface 15 is the probe 2 that shape and stitch and oscillographic interface channel 3 match.
The quantity of described second interface 15 can be multiple.Each described second interface 15 mates the oscillographic interface channel 3 of at least one.Each second interface 15 is arranged on the outer shell outer wall of coupling arrangement by automatic line receiver, when user needs to use a certain second interface 15, is pulled out by corresponding second interface 15 and can insert corresponding oscillographic interface channel 3.
In addition, because oscillograph operationally needs input resistance, this input resistance can be arranged in external probes 2.In a kind of optimal way, also comprise in described coupling arrangement: be connected to the input resistance option cell between described attenuation units 13 and the second interface control unit 14, comprise: multiple input resistance, each input resistance connects an actuating switch, and described input resistance option cell is used for based on the connected corresponding actuating switch of oscillographic input resistance conducting.
At this, described actuating switch can be arranged on the outer wall of described coupling arrangement, so that user selects according to the oscillograph that will connect.When selected actuating switch closes, the level signal after decay transports to described second interface control unit 14.
As shown in Figure 4, the structure example of oscillographic coupling arrangement of the present invention is as follows:
Multiple first interface 11 mates the probe 2 of different model, and the output terminal correspondence of each described first interface 11 connects each first controlled module in first interface control module 12.Wherein, the base stage of the triode in described first controlled module connects the output terminal of described first interface 11, collector connection relay, grounded emitter, described relay described triode of connecting is connected between electric power loop, the controlled switch in parallel at described relay two ends.Be connected with attenuation units 13 after each first controlled module parallel connection.The bleeder circuit of multiple corresponding differential declines grade is comprised in described attenuation units 13.Each bleeder circuit comprises: the trigger be connected with the output terminal of described first interface control module 12, the divider resistance be connected with the output terminal of described trigger, wherein, described trigger exports the level signal from first interface 11 when exceeding corresponding predetermined voltage range.Be connected with input resistance option cell after each described bleeder circuit parallel connection.Described input resistance option cell comprises input resistance in parallel and actuating switch.Described actuating switch can manually be disconnected by user and close.The output terminal of described input resistance option cell connects the second interface control unit 14, and each second controlled module correspondence in each second interface control unit 14 connects second interface 15, and each described second interface 15 connects an oscillographic interface gateway.Each described second controlled module also comprises and is connected to relay between electric power loop and triode, is connected in parallel on described relay two ends and the controlled switch of level signal after receiving attenuation; Wherein, the base stage of described triode connects the input end of described second interface 15, collector connects described relay, grounded emitter.
The course of work of the coupling arrangement of said structure is exemplified below:
One probe 2 is connected to first interface 11 by user, and according to after the actuating switch in connected oscillograph selected input resistance option cell, the level signal of detection is passed to described first interface 11 by probe 2, and described level signal is transported to the first connected controlled module by described first interface 11.Triode in described first controlled module, based on this level signal conducting, makes the electric power loop conducting of relay place, and the electric power loop order of conducting is connected in parallel on the controlled switch adhesive of relay both sides, and exports described level signal.Described level signal transports to attenuation units 13 through the first controlled module, each bleeder circuit in described attenuation units 13 voltage range presetting according to self judges described level signal whether within relevant voltage scope, and according to the comparative result high level of trigger or low level.The bleeder circuit exporting high level, due to detected level signal has been carried out dividing potential drop, is decayed to this level signal.After each bleeder circuit parallel connection, the level signal after decay is transported to the second interface control unit 14 by the input resistance of institute's conducting.Each second controlled module in described second interface control unit 14 is switched on based on received level signal, transports to oscillograph by the second interface 15 simultaneously.
In sum, the present invention can not only mate the probe of polytypic, also utilizes attenuation units to expand the voltage range of the level signal that oscillograph can bear; In addition, comprising in described first control module and first interface the first controlled module one to one, being convenient to the automatic conducting when there being level signal to access; Further, bleeder circuit is utilized to carry out dividing potential drop decay to described level signal; Further, the predetermined voltage range in each bleeder circuit and the resistance of divider resistance set according to the class of attenuation preset, and can help the level signal of the larger voltage range of oscillograph process; In addition, optional input resistance is set, is convenient to the needs being suitable for dissimilar oscillographic input resistance.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (8)
1. an oscillographic coupling arrangement, is characterized in that, comprising:
The multiple first interfaces matched with the probe of at least one model;
The first interface control module be connected with the output terminal of each described first interface respectively, transmits described level signal for working as connected probe detection to controlling corresponding first interface during level signal;
The attenuation units be connected with the output terminal of described first interface control module, for decaying received level signal;
The second interface control unit be connected with the output terminal of described attenuation units, for transmitting described level signal when receiving the level signal after decay;
Input end connects the second interface of described second interface control unit, and described second interface and oscillographic interface channel match.
2. oscillographic coupling arrangement according to claim 1, it is characterized in that, described first interface control module comprises: multiple first controlled module, each described first controlled module is corresponding with described first interface to be connected, and comprising: be connected to the relay between electric power loop, the triode of connecting with described relay and be connected in parallel on the controlled switch at described relay two ends; Wherein, the base stage of described triode connects the output terminal of described first interface, collector connects described relay, grounded emitter.
3. oscillographic coupling arrangement according to claim 1, it is characterized in that, described attenuation units comprises: at least one bleeder circuit, each bleeder circuit comprises: the trigger be connected with the output terminal of described first interface control module, the divider resistance be connected with the output terminal of described trigger, wherein, described trigger exports the level signal from first interface when exceeding corresponding predetermined voltage range.
4. oscillographic coupling arrangement according to claim 3, is characterized in that, described trigger comprises: the first comparer, the second comparer, triode T1 and T2, wherein, the upper limit of the negative input end access predetermined voltage range of described first comparer, positive input terminal is connected with the negative input end of described second comparer with the output terminal of described first interface control module, the lower limit of the positive input terminal access predetermined voltage range of described second comparer, described first comparer is all connected the base stage of described triode T1 with the output terminal of the second comparer, the base stage of the collector connecting triode T2 of described triode T1, the grounded emitter of described triode T1, the emitter of described triode T2 connects the output terminal of described first interface control module, collector connects divider resistance Rset1.
5. oscillographic coupling arrangement according to claim 3, is characterized in that, the quantity of described bleeder circuit is multiple and is connected in parallel, and the predetermined voltage range in each described bleeder circuit is relevant to the class of attenuation preset with the resistance of divider resistance.
6. oscillographic coupling arrangement according to claim 1, it is characterized in that, also comprise: be connected to the input resistance option cell between described attenuation units and the second interface control unit, comprise: multiple input resistance, each input resistance connects an actuating switch, and described input resistance option cell is used for based on the connected corresponding actuating switch of oscillographic input resistance conducting.
7. oscillographic coupling arrangement according to claim 1, it is characterized in that, described second interface control unit comprises: multiple second controlled module, each described second controlled module is corresponding with described second interface to be connected, comprise: be connected to the relay between electric power loop and triode, be connected in parallel on described relay two ends and the controlled switch of level signal after receiving attenuation; Wherein, the base stage of described triode connects the input end of described second interface, collector connects described relay, grounded emitter.
8. an oscillograph, is characterized in that, comprises as the coupling arrangement as described in arbitrary in claim 1-7.
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| CN201510648887.XA CN105182034B (en) | 2015-10-09 | 2015-10-09 | Oscillograph and its attachment means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111413527A (en) * | 2020-05-13 | 2020-07-14 | 深圳市鼎阳科技股份有限公司 | Single-ended active probe for oscilloscope and signal detection system |
| CN112684234A (en) * | 2021-03-19 | 2021-04-20 | 深圳市鼎阳科技股份有限公司 | Probe identification method of oscilloscope and oscilloscope |
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| CN112684234A (en) * | 2021-03-19 | 2021-04-20 | 深圳市鼎阳科技股份有限公司 | Probe identification method of oscilloscope and oscilloscope |
| CN112684234B (en) * | 2021-03-19 | 2021-06-22 | 深圳市鼎阳科技股份有限公司 | Probe identification method of oscilloscope and oscilloscope |
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